Voice APIs & SIP Trunking · Vendor file
Twilio
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Create amazing customer experiences with our Customer Engagement Platform (CEP) that combines communication APIs with AI. Build solutions for SMS, WhatsApp, voice, and email.
Active · verified September 2026
Categories Twilio serves
The B4 Index places Twilio in 6 categories. Each category page lays out the build-versus-buy considerations for that decision.
Voice APIs & SIP Trunking Primary $0.013-0.022/min
Identity Verification & 2FA Primary $0.05/verification
Omnichannel Communication Orchestration Primary $1/active user/hr
Twilio compared
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